Blue John window
This is the first Blue John window to be made for 150 years. It contains polished slices from most of the named mineral veins in the Castleton mines.
The window was commissioned to celebrate the museums's redevelopment in 2017. It was designed by artist Caroline Chouler-Tissier with the help of 38 children from the Buxton Artbox Artclubs and staff at Treak Cliff Cavern led by Katherine Darlington. It was asembled by Stephen Parsonson and Rob Ramwell at Classic Glass Studios.
The inspiration for the window is the view shown further down the Time Wall, from Treak Cliff Cavern, looking east along the Hope Valley in October 2015.